Mitsubishi Heavy Industries SRK20ZS-W User manual

(Split system, air to air heat pump type)
INVERTER RESIDENTIAL
AIR-CONDITIONERS
SRK20ZS-W, -WB, -WT/SRC20ZS-WA
SRK25ZS-W, -WB, -WT/SRC25ZS-WA2
SRK35ZS-W, -WB, -WT/SRC35ZS-WA2
Wall mounted type
TECHNICAL MANUAL
SRF25ZS-W/SRC25ZS-WA2
SRF35ZS-W/SRC35ZS-WA2
Floor standing type
FDTC25VH1/SRC25ZS-WA2
FDTC35VH1/SRC35ZS-WA2
4-way ceiling cassette type
SRR25ZS-W/SRC25ZS-WA2
SRR35ZS-W/SRC35ZS-WA2
Ceiling concealed type
Manual No.'21•SRK-T-299
Wi-Fi option model (SRK only)
•Note:
(1) SRK series in this technical manual will have the
service code “/A”.
• SRK20ZS-W, -WB, -WT → SRK20ZS-W/A, -WB/A, -WT/A
• SRK25ZS-W, -WB, -WT → SRK25ZS-W/A, -WB/A, -WT/A
• SRK35ZS-W, -WB, -WT → SRK35ZS-W/A, -WB/A, -WT/A
(2) SRC25/35ZS-WA2 and SRC25/35ZS-WA
have the same specifications, so SRK25/35ZS-W
can also be connected to SRC25/35ZS-WA.
However, SRF/SRR/FDTC cannot be connected
to SRC25/35ZS-WA.
#
updated December 23, 2021

...................................................................... 89
(1) Wall mounted type (SRK)
...................................................................... 85
(1) Wall mounted type (SRK)
...................................................................... 32
(1) Wall mounted type (SRK)
CONTENTS
1. SPECIFICATIONS ......................................................................................... 4
2. EXTERIOR DIMENSIONS
3. ELECTRICAL WIRING
4. NOISE LEVEL
- ...................................................... 17
............................................................... 15
............................................................................ 19
........................................................................................... 19
......................................................................................... 23
...................................................................................... 24
.................................................................................. 27
............................................................................................ 27
......................................................................................... 31
.............................................................................................. 32
...................................................................... 13
(2) Floor standing type (SRF)
-...................................................... 72
...................................................................... 4
(1) Wall mounted type (SRK)
............................................................... 54
...................................................................... 46
(2) Floor standing type (SRF)
5. CHARACTERISTICS OF FAN ...................................................................... 80
.......................................................... 83
7. RANGE OF USAGE & LIMITATIONS
.................................................................................... 85
8. CAPACITY TABLES
6. PIPING SYSTEM .......................................................................................... 81
................................................................................... 89
9. APPLICATION DATA
9.1 Installation of indoor unit
-...................................................... 88
...................................................................... 89
9.2 Installation of outdoor unit
9.3
Safety precautions in handling air-conditioners with flammable refrigerants
..........117
-......................................................105
...................................................................113
10.1 SRK, SRF & SRR series .......................................................................120
..............120
...............................................................................122(3) Auto restart function
(2) Unit ON/OFF button ...............................................................................121
(1) Operation control function by wireless remote control ............................120
10. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER
.............................................................. 87
...................................................................... 86
(2) Floor standing type (SRF)
..............................................................101
...................................................................... 97
(2) Floor standing type (SRF)
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'21 • SRK-T-299

(10) Air outlet selection (SRF series only) .....................................................126
(9) Flap and louver control (SRK and SRF series only) ...............................125
(8) Economy operation ................................................................................124
(12) Timer operation ......................................................................................128
(11) 3D auto operation (SRK series only) .....................................................127
(13) Silent mode ...........................................................................................129
(15) Air flow range setting (SRK series only) ................................................129
(14) Night setback ........................................................................................129
(16) Display brightness adjustment (SRK series only) .................................. 130
(17) Wireless LAN connection function (SRK series only).............................130
(18) Fan control during heating thermostat OFF (SRK series only) ..............130
(22) Outline of automatic operation ................................................................134
(21) Outline of dehumidifying (DRY) opertaion ..............................................133
(19) Outline of heating operation ....................................................................131
(20) Outline of cooling operation ....................................................................133
(23) Protective control function .......................................................................134
........................174
..................................................................................173
10.2 Models FDTC25VH1, 35VH1 ..................................................................142
10.2.1 Remote control (Option parts) ........................................................142
10.2.3 Operation control function by the indoor control ........................148
10.2.2 Operation control function by the wired remote control .............145
10.2.4 Operation control function by the outdoor control .....................167
(4) Troubleshooting procedure (If the air-conditioner runs)
11.1 SRK, SRF & SRR series ........................................................................173
(3) Troubleshooting procedure
(If the air-conditioner does not run at all) ........173
(1) Cautions ................................................................................................173
(2) Items to check before troubleshooting .................................................173
(10) How to make sure of wireless remote control .......................................191
..............................................................192
(12) Outdoor unit inspection points
(5) Self-diagnosis table ..............................................................................175
(6) Service mode (Trouble mode access function) ....................................176
(8)
Phenomenon observed after short-circuit, wire breakage on sensor ..........189
(7) Inspection procedures corresponding to detail of trouble ......................184
(9) Checking the indoor electrical equipment .............................................189
11. MAINTENANCE DATA
...191
(11)
Inspection procedure for blown fuse on the indoor and outdoor unit PCB
(5) Selection of the annual cooling function ................................................123
....................................122(4) Installing two air-conditioners in the same room
(7) High power operation ..............................................................................124
(6) Heating only function (SRK series only) ................................................124
(24) Defrost heater control .............................................................................141
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(6) Inverter checker for diagnosis of inverter output ..................................203
(7) Outdoor unit inspection points ...............................................................204
....................................................................................207(2) Troubleshooting
......................................................................................206(1) List of troubles
11.2.2 Troubleshooting flow .......................................................................206
13.
TECHNICAL INFORMATION
12.1 Wired remote control ............................................................................249
12.3 Wireless kit (FDTC only) ........................................................................267
12.4 Motion sensor kit (FDTC only) ..............................................................275
12.2 Simple wired remote control (RCH-E3) ................................................261
12.5 Interface kit (SC-BIKN2-E) .....................................................................281
12.6 Superlink E board (SC-ADNA-E) ..........................................................285
12.7 Ceiling concealed type (SRR) option parts .........................................287
12.8 OA spacer (FDTC only) .........................................................................290
12.9 Duct joint (FDTC only) ...........................................................................294
12. OPTION PARTS ............................................................................................249
.........................................................................295
......................................................................295
(1) Wall mounted type (SRK)
...............................................................306
-......................................................308
......................................................................304
(2) Floor standing type (SRF)
(3) Troubleshooting at the indoor unit ........................................................197
(2) Troubleshooting procedure ...................................................................197
(5) Check of anomalous operation data with the remote control ................201
(4) Troubleshooting at the outdoor unit ......................................................200
............................................................................................194
11.2 FDTC series
11.2.1 Diagnosing of microcomputer circuit .............................................194
(1) Selfdiagnosis function ...........................................................................194
■How to read the model name
Example: SRR 25 Z
Series code
Inverter type
Product capacity (Cooling capacity)
Model name
S-W
Example: FDTC 25 VH1
Series code
Product capacity (Cooling capacity)
Model name 〔4-way ceiling cassette type〕
SRK : Wall mounted type
SRF : Floor standing type
SRR : Ceiling concealed type
SRC : Outdoor unit
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'21 • SRK-T-299

1. SPECIFICATIONS
(1) Wall mounted type (SRK)
G
RWA000Z274
Model
Item
SRK20ZS-W
Indoor unit SRK20ZS-W Outdoor unit SRC20ZS-WA
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 2.0 ( 0.9 (Min.) - 2.9 (Max.))
Nominal heating capacity (range) kW 2.7 ( 0.9 (Min.) - 4.3 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
0.44 ( 0.19 - 0.80 )
Heating 0.59 ( 0.20 - 1.40 )
Heating (H2) —
Max power consumption 1.65
Running current Cooling
A
2.6 / 2.5 / 2.4 (220/ 230/ 240V)
Heating 3.2 / 3.0 / 2.9 (220/ 230/ 240V)
Inrush current, max current 3.2 / 3.0 / 2.9 (220/ 230/ 240V)Max.9
Power factor Cooling %79
Heating 85
EER Cooling 4.55
COP Heating 4.58
Heating (H2) —
Sound power level Cooling
dB(A)
48 56
Heating 50 56
Sound pressure level Cooling Hi: 34 Me: 25 Lo: 22 ULo: 19 45
Heating Hi: 36 Me: 29 Lo: 23 ULo: 19 45
Silent mode sound pressure level — Cooling:42 / Heating:43
Exterior dimensions (Height x Width x Depth) mm 290 x 870 x 230 540 x 780(+62) x 290
Exterior appearance
(Equivalent color : Munsell, RAL)
Fine snow (Pure white)
( 8.0Y 9.3/0.1 ) , ( 9003 )
Stucco white
( 4.2Y 7.5/1.1 ) , ( 7044 )
Net weight kg 9.5 31.5
Compressor type & Quantity — RM-C5077SBE71( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.75 ( Inverter driven )
Refrigerant oil (Amount, type) L — 0.30 ( DIAMOND FREEZE MB75 )
Refrigerant (Type, amount, pre-charge length) kg R32 0.62 in outdoor unit (Incl. the amount for the piping of 15m )
Heat exchanger rooved tubing rooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 24 x1 (Direct drive)
Cooling m3/min Hi: 9.3 Me: 7.0 Lo: 5.9 ULo: 5.0 27.4
Heating Hi: 10.0 Me: 8.5 Lo: 6.5 ULo: 5.9 23.6
Available external static pressure Pa 0 0
Outside air intake Not possible —
r, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
Rubber sleeve (for fan motor & compressor)
Defrost heater 230V 110WElectric heater —
Operation
control
Remote control Wireless remote control
Room temperature control Microcomputer thermostat
Operation display RUN: Green, TIMER: Yellow
Safety equipments
Compressor overheat protection, Overcurrent protection,
Frost protection, Serial signal error protection, Indoor fan motor error protection,
Heating overload protection( High pressure control ), Cooling overload protection
Installation
data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 (1/4") Gas line: φ9.52 (3/8")
Connecting method Flare connection Flare connection
Attached length of piping m Liquid line : 0.54 / Gas line : 0.47 —
Insulation for piping Necessary ( Both sides ), independent
Refrigerant line (one way) length m Max.20
Vertical height diff. between O.U. and I.U. m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP 16 )
Hole size φ20 x 2 pcs., Hole size φ16 x 9 pcs.
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 3.2 / 3.0 / 2.9 (220/ 230/ 240V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores (Including earth cable) / Terminal block (Scr
IP number IPX0 IPX4
Standard accessories
Outdoor : Not included Drain grommet and Drain elbow
Option parts
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
Interface kit ( SC-BIKN2-E )
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'21 • SRK-T-299

Model
Item
SRK25ZS-W
Indoor unit SRK25ZS-W Outdoor unit SRC25ZS-WA2
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 2.5 ( 0.9 (Min.) - 3.1 (Max.))
Nominal heating capacity (range) kW 3.2 ( 0.9 (Min.) - 4.5 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
0.62 ( 0.19 - 0.90 )
Heating 0.74 ( 0.20 - 1.42 )
Heating (H2) —
Max power consumption 1.65
Running current Cooling
A
3.3 / 3.1 / 3.0 (220/ 230/ 240V)
Heating 3.7 / 3.6 / 3.4 (220/ 230/ 240V)
Inrush current, max current 3.7 / 3.6 / 3.4 (220/ 230/ 240V) Max. 9
Power factor Cooling %86
Heating 90
EER Cooling 4.03
COP Heating 4.32
Heating (H2) —
Sound power level Cooling
dB(A)
50 56
Heating 53 58
Sound pressure level Cooling Hi: 36 Me: 28 Lo: 23 ULo: 19 46
Heating Hi: 39 Me: 30 Lo: 24 ULo: 19 46
Silent mode sound pressure level — Cooling:42 / Heating:43
Exterior dimensions (Height x Width x Depth) mm 290 x 870 x 230 540 x 780(+62) x 290
Exterior appearance
(Equivalent color : Munsell, RAL)
Fine snow (Pure white)
( 8.0Y 9.3/0.1 ) , ( 9003 )
Stucco white
( 4.2Y 7.5/1.1 ) , ( 7044 )
Net weight kg 9.5 31.0
Compressor type & Quantity — RM-C5077SBE71( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.75 ( Inverter driven )
Refrigerant oil (Amount, type) L — 0.30 ( DIAMOND FREEZE MB75 )
Refrigerant (Type, amount, pre-charge length) kg R32 0.62 in outdoor unit (Incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min Hi: 9.9 Me: 8.0 Lo: 5.9 ULo: 5.0 27.4
Heating Hi: 11.3 Me: 8.7 Lo: 6.7 ULo: 5.9 23.6
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
Rubber sleeve (for fan motor & compressor)
Electric heater — Defrost heater 230V 110W
Operation
control
Remote control Wireless remote control
Room temperature control Microcomputer thermostat
Operation display RUN: Green , TIMER: Yellow
Safety equipments
Compressor overheat protection, Overcurrent protection
Frost protection, Serial signal error protection, Indoor fan motor error protection
Heating overload protection( High pressure control ), Cooling overload protection
Installation
data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 (1/4") Gas line: φ9.52 (3/8")
Connecting method Flare connection Flare connection
Attached length of piping m Liquid line : 0.54 / Gas line : 0.47 —
Insulation for piping Necessary ( Both sides ), independent
Refrigerant line (one way) length m Max.20
Vertical height diff. between O/U and I/U m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP16 )
Hole size φ20 x 2 pcs., Hole size φ16 x 9 pcs.
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 3.7 / 3.6 / 3.4 (220/ 230/ 240V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores (Including earth cable) / Terminal block (Screw fixing type)
IP number IPX0 IPX4
Standard accessories
Mounting kit, Clean filter ( Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1 )
Option parts Interface kit ( SC-BIKN2-E )
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
G
RWA000Z274
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5
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'21 • SRK-T-299

Model
Item
SRK35ZS-W
Indoor unit SRK35ZS-W Outdoor unit SRC35ZS-WA2
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 3.5 ( 0.9 (Min.) - 4.0 (Max.))
Nominal heating capacity (range) kW 4.0 ( 0.9 (Min.) - 5.0 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
0.89 ( 0.17 - 1.24 )
Heating 0.94 ( 0.19 - 1.45 )
Heating (H2) —
Max power consumption 1.65
Running current Cooling
A
4.4 / 4.2 / 4.0 (220/ 230/ 240V)
Heating 4.6 / 4.4 / 4.2 (220/ 230/ 240V)
Inrush current, max current 4.6 / 4.4 / 4.2 (220/ 230/ 240V) Max. 9
Power factor Cooling %92
Heating 93
EER Cooling 3.93
COP Heating 4.26
Heating (H2) —
Sound power level Cooling
dB(A)
54 61
Heating 56 61
Sound pressure level Cooling Hi: 40 Me: 30 Lo: 26 ULo: 19 50
Heating Hi: 41 Me: 36 Lo: 25 ULo:19 48
Silent mode sound pressure level — Cooling:45 / Heating:44
Exterior dimensions (Height x Width x Depth) mm 290 x 870 x 230 540 x 780(+62) x 290
Exterior appearance
(Equivalent color : Munsell, RAL)
Fine snow (Pure white)
( 8.0Y 9.3/0.1 ) , ( 9003 )
Stucco white
( 4.2Y 7.5/1.1 ) , ( 7044 )
Net weight kg 9.5 34.5
Compressor type & Quantity — RM-B5077SBE2( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.90 ( Inverter driven )
Refrigerant oil (Amount, type) L — 0.30 ( DIAMOND FREEZE MB75 )
Refrigerant (Type, amount, pre-charge length) kg R32 0.78 in outdoor unit (Incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min Hi: 11.3 Me: 8.7 Lo: 7.0 ULo: 5.0 31.5
Heating Hi: 12.3 Me: 11.0 Lo: 7.0 ULo: 5.6 27.8
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
Rubber sleeve (for fan motor & compressor)
Electric heater — Defrost heater 230V 110W
Operation
control
Remote control Wireless remote control
Room temperature control Microcomputer thermostat
Operation display RUN: Green , TIMER: Yellow
Safety equipments
Compressor overheat protection, Overcurrent protection
Frost protection, Serial signal error protection, Indoor fan motor error protection
Heating overload protection( High pressure control ), Cooling overload protection
Installation
data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 (1/4") Gas line: φ9.52 (3/8")
Connecting method Flare connection Flare connection
Attached length of piping m Liquid line : 0.54 / Gas line : 0.47 —
Insulation for piping Necessary ( Both sides ), independent
Refrigerant line (one way) length m Max.20
Vertical height diff. between O/U and I/U m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP16 )
Hole size φ20 x 2 pcs., Hole size φ16 x 9 pcs.
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 4.6 / 4.4 / 4.2 (220/ 230/ 240V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores (Including earth cable) / Terminal block (Screw fixing type)
IP number IPX0 IPX4
Standard accessories
Mounting kit, Clean filter ( Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1 )
Option parts Interface kit ( SC-BIKN2-E )
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
G
RWA000Z274
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6
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'21 • SRK-T-299

G
RWA000Z274
Model
Item
SRK20ZS-WB
Indoor unit SRK20ZS-WBOutdoor unit SRC20ZS-WA
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 2.0 ( 0.9 (Min.) - 2.9 (Max.))
Nominal heating capacity (range) kW 2.7 ( 0.9 (Min.) - 4.3 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
0.44 ( 0.19 - 0.80 )
Heating 0.59 ( 0.20 - 1.40 )
Heating (H2) —
Max power consumption 1.65
Running current Cooling
A
2.6 / 2.5 / 2.4 (220/ 230/ 240V)
Heating 3.2 / 3.0 / 2.9 (220/ 230/ 240V)
Inrush current, max current 3.2 / 3.0 / 2.9 (220/ 230/ 240V)Max.9
Power factor Cooling %79
Heating 85
EER Cooling 4.55
COP Heating 4.58
Heating (H2) —
Sound power level Cooling
dB(A)
48 56
Heating 50 56
Sound pressure level Cooling Hi: 34 Me: 25 Lo: 22 ULo: 19 45
Heating Hi: 36 Me: 29 Lo: 23 ULo: 19 45
Silent mode sound pressure level — Cooling:42 / Heating:43
Exterior dimensions (Height x Width x Depth) mm 290 x 870 x 230 540 x 780(+62) x 290
Exterior appearance
(Equivalent color : Munsell, RAL)
Fine snow ( 8.0Y 9.3/0.1 ) , ( 9003 )
Black ( 4.0PB 2.44/0.25 ) , ( 9011 )
Stucco white
( 4.2Y 7.5/1.1 ) , ( 7044 )
Net weight kg 9.5 31.5
Compressor type & Quantity — RM-C5077SBE71( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.75 ( Inverter driven )
Refrigerant oil (Amount, type) L — 0.30 ( DIAMOND FREEZE MB75 )
Refrigerant (Type, amount, pre-charge length) kg R32 0.62 in outdoor unit (Incl. the amount for the piping of 15m )
Heat exchanger rooved tubing rooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 24 x1 (Direct drive)
Cooling m3/min Hi: 9.3 Me: 7.0 Lo: 5.9 ULo: 5.0 27.4
Heating Hi: 10.0 Me: 8.5 Lo: 6.5 ULo: 5.9 23.6
Available external static pressure Pa 0 0
Outside air intake Not possible —
r, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
Rubber sleeve (for fan motor & compressor)
Electric heater —
Operation
control
Remote control Wireless remote control
Room temperature control Microcomputer thermostat
Operation display RUN: Green, TIMER: Yellow
Safety equipments
Compressor overheat protection, Overcurrent protection,
Frost protection, Serial signal error protection, Indoor fan motor error protection,
Heating overload protection( High pressure control ), Cooling overload protection
Installation
data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 (1/4") Gas line: φ9.52 (3/8")
Connecting method Flare connection Flare connection
Defrost heater 230V 110W
Attached length of piping m Liquid line : 0.54 / Gas line : 0.47 —
Insulation for piping Necessary ( Both sides ), independent
Refrigerant line (one way) length m Max.20
Vertical height diff. between O.U. and I.U. m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP 16 )
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 3.2 / 3.0 / 2.9 (220/ 230/ 240V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores (Including earth cable) / Terminal block (Scr
IP number IPX0 IPX4
Standard accessories
Outdoor : Not included Drain grommet and Drain elbow
Option parts
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
Interface kit ( SC-BIKN2-E )
Hole size φ20 x 2 pcs., Hole size φ16 x 9 pcs.
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7
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'21 • SRK-T-299

Model
Item
SRK25ZS-WB
Indoor unit SRK25ZS-WB Outdoor unit SRC25ZS-WA2
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 2.5 ( 0.9 (Min.) - 3.1 (Max.))
Nominal heating capacity (range) kW 3.2 ( 0.9 (Min.) - 4.5 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
0.62 ( 0.19 - 0.90 )
Heating 0.74 ( 0.20 - 1.42 )
Heating (H2) —
Max power consumption 1.65
Running current Cooling
A
3.3 / 3.1 / 3.0 (220/ 230/ 240V)
Heating 3.7 / 3.6 / 3.4 (220/ 230/ 240V)
Inrush current, max current 3.7 / 3.6 / 3.4 (220/ 230/ 240V) Max. 9
Power factor Cooling %86
Heating 90
EER Cooling 4.03
COP Heating 4.32
Heating (H2) —
Sound power level Cooling
dB(A)
50 56
Heating 53 58
Sound pressure level Cooling Hi: 36 Me: 28 Lo: 23 ULo: 19 46
Heating Hi: 39 Me: 30 Lo: 24 ULo: 19 46
Silent mode sound pressure level — Cooling:42 / Heating:43
Exterior dimensions (Height x Width x Depth) mm 290 x 870 x 230 540 x 780(+62) x 290
Exterior appearance
(Equivalent color : Munsell, RAL)
Fine snow ( 8.0Y 9.3/0.1 ) , ( 9003 )
Black ( 4.0PB 2.44/0.25 ) , ( 9011 )
Stucco white
( 4.2Y 7.5/1.1 ) , ( 7044 )
Net weight kg 9.5 31.0
Compressor type & Quantity — RM-C5077SBE71( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.75 ( Inverter driven )
Refrigerant oil (Amount, type) L — 0.30 ( DIAMOND FREEZE MB75 )
Refrigerant (Type, amount, pre-charge length) kg R32 0.62 in outdoor unit (Incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min Hi: 9.9 Me: 8.0 Lo: 5.9 ULo: 5.0 27.4
Heating Hi: 11.3 Me: 8.7 Lo: 6.7 ULo: 5.9 23.6
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
Rubber sleeve (for fan motor & compressor)
Electric heater — Defrost heater 230V 110W
Operation
control
Remote control Wireless remote control
Room temperature control Microcomputer thermostat
Operation display RUN: Green , TIMER: Yellow
Safety equipments
Compressor overheat protection, Overcurrent protection
Frost protection, Serial signal error protection, Indoor fan motor error protection
Heating overload protection( High pressure control ), Cooling overload protection
Installation
data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 (1/4") Gas line: φ9.52 (3/8")
Connecting method Flare connection Flare connection
Attached length of piping m Liquid line : 0.54 / Gas line : 0.47 —
Insulation for piping Necessary ( Both sides ), independent
Refrigerant line (one way) length m Max.20
Vertical height diff. between O/U and I/U m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP16 )
Hole size φ20 x 2 pcs., Hole size φ16 x 9 pcs.
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 3.7 / 3.6 / 3.4 (220/ 230/ 240V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores (Including earth cable) / Terminal block (Screw fixing type)
IP number IPX0 IPX4
Standard accessories
Mounting kit, Clean filter ( Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1 )
Option parts Interface kit ( SC-BIKN2-E )
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
F
RWA000Z274
G
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8
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'21 • SRK-T-299

Model
Item
SRK35ZS-WB
Indoor unit SRK35ZS-WB Outdoor unit SRC35ZS-WA2
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 3.5 ( 0.9 (Min.) - 4.0 (Max.))
Nominal heating capacity (range) kW 4.0 ( 0.9 (Min.) - 5.0 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
0.89 ( 0.17 - 1.24 )
Heating 0.94 ( 0.19 - 1.45 )
Heating (H2) —
Max power consumption 1.65
Running current Cooling
A
4.4 / 4.2 / 4.0 (220/ 230/ 240V)
Heating 4.6 / 4.4 / 4.2 (220/ 230/ 240V)
Inrush current, max current 4.6 / 4.4 / 4.2 (220/ 230/ 240V) Max. 9
Power factor Cooling %92
Heating 93
EER Cooling 3.93
COP Heating 4.26
Heating (H2) —
Sound power level Cooling
dB(A)
54 61
Heating 56 61
Sound pressure level Cooling Hi: 40 Me: 30 Lo: 26 ULo: 19 50
Heating Hi: 41 Me: 36 Lo: 25 ULo:19 48
Silent mode sound pressure level — Cooling:45 / Heating:44
Exterior dimensions (Height x Width x Depth) mm 290 x 870 x 230 540 x 780(+62) x 290
Exterior appearance
(Equivalent color : Munsell, RAL)
Fine snow ( 8.0Y 9.3/0.1 ) , ( 9003 )
Black ( 4.0PB 2.44/0.25 ) , ( 9011 )
Stucco white
( 4.2Y 7.5/1.1 ) , ( 7044 )
Net weight kg 9.5 34.5
Compressor type & Quantity — RM-B5077SBE2( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.90 ( Inverter driven )
Refrigerant oil (Amount, type) L — 0.30 ( DIAMOND FREEZE MB75 )
Refrigerant (Type, amount, pre-charge length) kg R32 0.78 in outdoor unit (Incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min Hi: 11.3 Me: 8.7 Lo: 7.0 ULo: 5.0 31.5
Heating Hi: 12.3 Me: 11.0 Lo: 7.0 ULo: 5.6 27.8
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
Rubber sleeve (for fan motor & compressor)
Electric heater — Defrost heater 230V 110W
Operation
control
Remote control Wireless remote control
Room temperature control Microcomputer thermostat
Operation display RUN: Green , TIMER: Yellow
Safety equipments
Compressor overheat protection, Overcurrent protection
Frost protection, Serial signal error protection, Indoor fan motor error protection
Heating overload protection( High pressure control ), Cooling overload protection
Installation
data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 (1/4") Gas line: φ9.52 (3/8")
Connecting method Flare connection Flare connection
Attached length of piping m Liquid line : 0.54 / Gas line : 0.47 —
Insulation for piping Necessary ( Both sides ), independent
Refrigerant line (one way) length m Max.20
Vertical height diff. between O/U and I/U m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP16 )
Hole size φ20 x 2 pcs., Hole size φ16 x 9 pcs.
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 4.6 / 4.4 / 4.2 (220/ 230/ 240V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores (Including earth cable) / Terminal block (Screw fixing type)
IP number IPX0 IPX4
Standard accessories
Mounting kit, Clean filter ( Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1 )
Option parts Interface kit ( SC-BIKN2-E )
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
G
RWA000Z274
-
9
-
'21 • SRK-T-299